Eclipse's Juno doesn't recover changes - eclipse

I've turned to Eclipses's Juno lately , it works fine , but when I make any change to any file and run the project again : changes aren't recovered (specially for web development) , and I have to close the IDE and restart it again ; in order for the changes to take place..
I didn't encounter that in latest eclipse editions , is there a solution for that problem ?

Are you sure you've "built" your changes from the Project menu, or have automatic builds enabled?

as mentioned above:
The problem was solved after I had restarted the computer , till now I have no clue about the cause of the problem.

Related

Upgrade Eclipse without opening it

I have Eclipse Juno with Java EE, PHP, C++ and PyDev in it and it was working perfectly under Ubuntu 12.04 and later under 14.04.
Yet, when I upgraded my OS to Ubuntu 14.10, Eclipse doesn't work anymore, whenever I try to open it, it shuts down immediately.
I want to upgrade it to Luna but it doesn't give me the chance to launch the upgrade, I have an idea I have and wish to hear your advice on whether it is right or wrong.
What I'd like to do is to download Luna and extract it over the older version.
Will this work? Or will it make it even worse?
Is there anyone who tired it before?
You may even download Luna, and extract it to a different folder (not necessary on top of the older version).
Afterwards, launch Luna and try to load your previous workspace(s). You might want to backup your workspaces folder, before letting Luna attempt and load from there.
Updating the eclipse through the command line is safer. Try it using eclipse site
and also refer to this answer
I find solution here https://bugs.eclipse.org/bugs/show_bug.cgi?id=440660#c20 on comment 20
This seems to be a bug in GTK according to https://bugs.launchpad.net/ubuntu/+source/gtk2-engines-oxygen/+bug/1242801
(there a similar problem for Meld was reported).
Another workaround mentioned there is
For oxygen, edit the normally already existing file "/usr/share/themes/oxygen-gtk/gtk-2.0/gtkrc" and change
GtkComboBox::appears-as-list = 1
into
GtkComboBox::appears-as-list = 0
This workaround is working for me.

IBM Worklight 6.0 - Search option is not working

using IBM worklight enterprise edition in Eclipse Juno.Find & replace (ctrl+f) is not working often and issue still exist even after restarting the eclipse. It automatically resumes the issue and starts to work fine without doing any changes in the eclipse or restarting eclipse.
Any solutions or updates to fix this instability?
This is likely the same issue as in: IBM Worklight 6.0 - Copy/paste is not working
Not at all related to Worklight.
WL Studio is just an Eclipse plugin, and I doubt it's causing this issue. One way to find out is just grab another Eclipse Juno instance and try it there. If it works, install studio there and try again. If it's still working, use that instance instead and just move your workspace over.

Eclipse Helios seems to be corrupted

I am working on an application in Eclipse Helios and since yesterday every change in the code is not being applied when running the application. I have no idea what is going on. Is my Eclipse corrupted? Have some of you faced such situation? Many thaks.
You have probably disabled the automatic build, so Eclipse never compiles your changes. Check the main menu Project -> Build automatically.

Eclipse Indigo crashes after installing GWT

I was trying to set up GWT(Google Web Toolkit) on my system using it as a plugin for eclipse Indigo. I am currently on a Ubuntu workstation. Upon restart after the installation, eclipse simply crashes without any error info. I did look around here on stack overflow , as well as on google about what could be done, but the things which seemed to work for others do not seem to work for me.( deleting certain .jar files, deleting the metadata folder in the workspace).
Any help would be great.
Regards
Problem solved. There is a bug in Indigo , exposed by the plugin. All that needs to be done is to check for updates first and then install the plugin. The bug has been fixed in one of the point updates.

All Eclipse Plugins Disabled

I'm running Eclipse 3.5.2 on Ubuntu 10.04. I tried to install the EGit plugin for Eclipse, and after Eclipse restarted, I found all of my other plugins had effectively vanished (Subclipse, PyDev, OpenExtern, Colorer, etc). Oddly enough, Eclispe doesn't list anything as disabled, and running Eclipse from the command line doesn't show any errors.
I immediately uninstalled EGit, and tried uninstalling and then reinstalling some of my other plugins, but I can't seem to get anything working. Eclipse's software dialog listed them all as installed, and I can atleast see PyDev listed under the Open Perspective dialog, but when I try and start the PyDev perspective, nothing happens, and no errors are shown. I also tried Eclipse's update wizard, to install all pending updates for components, but that had no noticeable effect.
I'm completely lost, especially since I'm not getting any kind of messaging that would indicate a problem. What's happened here? How do I fix Eclipse's plugins?
EDIT: The issue seems to be similar to this post. I see dozens of errors like
Could not instantiate provider org.tigris.subversion.subclipse.core.svnnature for project X
in my ~/workspace/.metadata/.log
Unfortunately, the suggested solution of somehow using the Equinox p2 Installer doesn't work for me.
EDIT: I tried deleting my ~/.eclipse folder and reinstalling my plugins, but the problem persists.
EDIT: I again tried deleting my ~/.eclipse folder, my ~/workspace/.metadata folder, removing all Eclipse Ubuntu packages (including config data), and then reinstalling, but plugins still aren't showing up...
EDIT: There may have been some other weird stuff going on. I'm not sure what triggered it, but at some point my entire file system became "readonly", and a lot of processes started to crash when they couldn't modify their db files (e.g. Firefox). After a reboot, everything seemed to resolve itself, and I was able to download and install Eclipse 3.7, which supposedly doesn't suffer from this bug.
Try going to Help > About Eclipse
Click on Installation Details and the Installation History tab
Select the date before things got screwed up and hit Revert